The launch of NASA's THEMIS spacecraft aboard a Delta II rocket was scrubbed tonight six minutes before launch due to out-of-limit upper level winds in the region between 10 thousand and 20 thousand feet.

The next launch attempt will be on Saturday, Feb. 17. The launch window extends from 6:01 p.m. to 6:19 p.m. EST.

The chance of not meeting the launch weather criteria on Saturday is 10 percent due to a chance for thick layered clouds, and upper level winds will also continue to be of some concern.